CFML Reference
ColdFusion Functions

Day

Description

Determines the day of the month, in a date.

Return value

The ordinal for the day of the month, ranging from 1 to 31.

Category

Date and time functions

Syntax

Day("date") 

See also

DayOfWeek, DayOfWeekAsString, DayOfYear, DaysInMonth, DaysInYear, FirstDayOfMonth

Parameters

Parameter	Description
date	Date/time object, in the range 100 AD-9999 AD. See "How ColdFusion processes two-digit year values".

Usage

When passing a date/time object as a string, you must enclose it in quotation marks. Otherwise, it is interpreted as a numeric representation of a date/time object.

Note:   You can pass the CreateDate function or Now function as the date parameter of this function; for example: #Day(CreateDate(2001, 3, 3))#

Example

<h3>Day Example</h3>
<cfif IsDefined("FORM.year")>
  <p>More information about your date:
  <cfset yourDate = CreateDate(FORM.year, FORM.month, FORM.day)>
  <cfoutput>
    <p>Date: #DateFormat(yourDate)#. <br>
It is #DayofWeekAsString(DayOfWeek(yourDate))#, 
day #DayOfWeek(yourDate)# in the week.
    <br>This is day #Day(YourDate)# 
in the month of #MonthAsString(Month(yourDate))#, 
which has #DaysInMonth(yourDate)# days.
    <br>We are in week #Week(yourDate)# of #Year(YourDate)# 
     (day #DayofYear(yourDate)# of #DaysinYear(yourDate)#). 
    <br><cfif IsLeapYear(Year(yourDate))>This is a leap year
        <cfelse>This is not a leap year</cfif>
  </cfoutput>
</cfif>

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